2 // ignore-emscripten fma not implemented in emscripten
4 macro_rules! assert_approx_eq {
5 ($a:expr, $b:expr) => ({
6 let (a, b) = (&$a, &$b);
7 assert!((*a - *b).abs() < 1.0e-6,
8 "{} is not approximately equal to {}", *a, *b);
16 assert_approx_eq!(64f32.sqrt(), 8f32);
17 assert_approx_eq!(64f64.sqrt(), 8f64);
19 assert_approx_eq!(25f32.powi(-2), 0.0016f32);
20 assert_approx_eq!(23.2f64.powi(2), 538.24f64);
22 assert_approx_eq!(0f32.sin(), 0f32);
23 assert_approx_eq!((f64::consts::PI / 2f64).sin(), 1f64);
25 assert_approx_eq!(0f32.cos(), 1f32);
26 assert_approx_eq!((f64::consts::PI * 2f64).cos(), 1f64);
28 assert_approx_eq!(25f32.powf(-2f32), 0.0016f32);
29 assert_approx_eq!(400f64.powf(0.5f64), 20f64);
31 assert_approx_eq!((1f32.exp() - f32::consts::E).abs(), 0f32);
32 assert_approx_eq!(1f64.exp(), f64::consts::E);
34 assert_approx_eq!(10f32.exp2(), 1024f32);
35 assert_approx_eq!(50f64.exp2(), 1125899906842624f64);
37 assert_approx_eq!((f32::consts::E.ln() - 1f32).abs(), 0f32);
38 assert_approx_eq!(1f64.ln(), 0f64);
40 assert_approx_eq!(10f32.log10(), 1f32);
41 assert_approx_eq!(f64::consts::E.log10(), f64::consts::LOG10_E);
43 assert_approx_eq!(8f32.log2(), 3f32);
44 assert_approx_eq!(f64::consts::E.log2(), f64::consts::LOG2_E);
46 assert_approx_eq!(1.0f32.mul_add(2.0f32, 5.0f32), 7.0f32);
47 assert_approx_eq!(0.0f64.mul_add(-2.0f64, f64::consts::E), f64::consts::E);
49 assert_approx_eq!((-1.0f32).abs(), 1.0f32);
50 assert_approx_eq!(34.2f64.abs(), 34.2f64);
52 assert_approx_eq!(3.8f32.floor(), 3.0f32);
53 assert_approx_eq!((-1.1f64).floor(), -2.0f64);
55 assert_approx_eq!((-2.3f32).ceil(), -2.0f32);
56 assert_approx_eq!(3.8f64.ceil(), 4.0f64);
58 assert_approx_eq!(0.1f32.trunc(), 0.0f32);
59 assert_approx_eq!((-0.1f64).trunc(), 0.0f64);